Glass-tank.



M. J. OWENS.

GLASS TANK.

APPLIoATloN FILED JUNE-11. 1909.

1,034,824. Patented Aug. 6, 1912. Z SHEETS-SHEET 1.

Lf/P Jj M. J. OWENS.

GLASS TANK.

APPLICATION FILED JUNE 11, 1909.

Patented Aug. 6, 1912.

2 SHEETS-SHEET 2.

-.1 'l X 'Il H 'QV I f77/fenm- J/:ce/ J @wen/ STATES OFFICE.

MICHAEL J. OWENS, OF TOLEDO, OHIO, ASSIGNOR TO THE TOLEDO GLASS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

GLASS-TANK.

Spccication of Letters Patent.

Patented Aug. 6, 1912.

Application med :une 11, isos. serial no. 501,622.

To all whom it may concern.'

' Be it known that I, MxoHAEL J. OWENS, a citizen of the United States of America, residing at the city of Toledo, county of Lucas, State of 0h10, have invented certain new and useful Improvements in Glass- Tanks, of which the followin is a specification, reference being had t erein to the accompanying drawings.

This invention relates to new and useful improvements in glass tanks and consists particularly in the construction of such a tank with a glass lining, at least in that portion where the batch is melted; the tankbeing so constructed as to admit air to such glass lining to prevent its being melted durmg the operation of the tank.

The invention further consists' in the construction, arrangement and combination of the parts, as more fully hereinafter described and particularly pointed out in the claims.

In the drawings: Figure 1 is a transverse section through a glass tank embodying my invention; Fig. 2 1s a vertical longitudinal section through the. body of the tank, showing it as in use in connection with a rotary tank such as is now used with automatic bottle-making machines; Fig. 8 is a horizontal section on line of Fig. 2; and Fig. 4 is a section similar to Fig. 3, showing my improved tank employed in the ordinary continuous tank in whlch the glass is gathered by workmen.

At the present time where continuous tanks are employed, at the end of the tank where the glass 1s melted, that is, where the batch is put in to be melted, the flux in the glass contacts the brick lining and eats it out so that such tanks have to be re-built and a new 'lining inserted very frequently, at least once a year.

With my invention, the brick lining of the furnace at all times, atleast at the end where the flux would contact the bricks, is pro- I tected by a lining of glass, and this lining is kept suliciently cool to prevent its melting; with the result that the bricks cannot be contactedby the fiux and the life of the tanks is greatly prolonged.

A represents the tank-which, in this embodiment of my invention, I have shown as rectangular, with side-walls B. These sidewalls extend up slightly beyond the level of the melted metal line.

C is a cap or top having depending sideportions D which, with the the side-walls of the tank.

The depending ortions D may be made of single blocks of rick or clay, molded and baked inthe shape shown, and the top C may be 'sprung between these side-portions D. Thls top or cap is smaller than the tank A, so as to leave a space E lateral-ly between the walls B and D, as clearly shown in the drawing.

The cap, with its side-portions D, may be suspended in any suitable manner, and I have shown brackets F engaging stepped bearings in the blocks D, suspended from the cross-beam G which, in turn, is suspended from suitable osts H. This suspending frame may trussed and braced in any desirable' manner, and I do not deem it necessary to go into the details of the construction of the same. v.

The space or air-gap E preferably extends portions B, form around that portion of the tank at the melting end, or may, if desired, extend all the way around. I have shown it as extending across the one end and bot-h sides of the tank, while the front wall a at the delivery end of the tank is not providedswith such an air-gap but is simply a straight wall of the ordinary construction.

Through the delivery end I have shown (Figs. 2 and 3) a discharge spout b feeding into a rotary tank H. As the construction of this rotary tank is well-known, I do not deem it necessary to describe same.

In Fig. 4 I have shown the front-Wall as provided with gathering-holes I. J are the usual oaters intended to prevent the scum from comin to the gathering point or being discharged 1nto the gathering tank.

I have shown in Fig. 1 a1r and gas inlet passages K and L respectively, of the usual construction as ordinarily used in connection with a regenerative furnace, but as this also is well known I do not need to go into a particular description or illustration of the same.

The depending wall D is slightly above the melted metal line as indicated at M, and the wall B is slightly above the level of that metal line.

I have shown a floater N which may be made of brick, of the usual construction, restingon the melted met'al just outside of the Wall D, its weight causing it to be deis provided with a suitable cover O', in the top of the tank (Fig. l) and at the end of the tank (Fig. 2). It is immaterial just how this opening is arranged, so long as it is so located and arranged that the batch may be fed in at one end of the tank, the' glass being melted and flowin to the discharge-where it iiows out, or 1s taken out, for use.

The parts being thus constructed, the operation of the device is as follows: In first starting the tank, after it is built, the batch is placed in through the feed opening in the usual manner and the gas is burned over the same for melting. In such starting operation, it probably will be necessary to cover `the air-gap E with some temporary covering until the glass is melted up` to the melted metal line, as shown. When this is accomplished, the temporary covering will be removed and the floats N placed in position,

acting as seals to prevent the egress of the heated products of combustion from within' the tank beneath the wall D and over the melted metal out through' the opening E.

39 As soon as the ioats are in position, it will be observed that the outer or marginal surface of the glass of the tank will be exposed to the air in all of that portion of the opening E except that covered by the floater N.

This exposure will chill the glass at the margins of the tank and cause a lining P of glass to cover the side-walls and protect those walls thereafter in the use of the tank from being contacted with the molten glass; and the result is that on the Sides and ends of the tank, at the melting or feedin end thereof, there is a glassillning comp etely protecting the brick from contact with the flux and melting glass, so that Asuch sidewalls should have a very long lift, without material deterioration.

The only thing which couldbe attacked by the molten glass and iux would be the floater N, which can be easily and readily re-placed.

What I claim as my invention is:

l. A glass tank having side walls, the upper and top portion being offset inwardly from the lower portion to leave an airap at or about the melted metal line, and a oat in the air-gap extending above the lower edge of the upper section and below the upper edge of the lower section of the side.- wall, for the purpose specified.

2. A glass tank havlng side-Walls and a top, the to approaching the level of the top of the si e-walls but within the vertical plane thereof, leaving an air-gap within the side-walls and outsideof the top; a lot in the air-gap adjacent to the top but of lesser width than the air-gap, leavin an open sec- Ation outside of the float and wlthin the sidewalls, for the purpose specified.

In testimony whereof I ailix my signature in presence of two witnesses.

MICHAEL J. OWENS. Witnesses:

MABEL O. MILLER, i T. H. MILLER. 

